PShape texture only applies colour not text?

Processing Coding Questions
10

Terribly sorry, should have actually shared it from my test sketch – perhaps I forgot the return type? Anyhow,

Replace this line:

// roundRect.setTexture(textBoxPGraphics);
roundRect = addTextureUV(roundRect, textBoxPGraphics);

… and add THIS function:

/**
 * https://github.com/processing/processing/issues/2508#issuecomment-50774212
 */
PShape addTextureUV(PShape s, PImage img) {
  PShape s2 = s.getTessellation(); // github.com/processing/processing/issues/2508#issuecomment-52296723
  s2.setStroke(false);
  s2.setTexture(img);
  s2.setTextureMode(NORMAL);
  for (int i = 0; i < s2.getVertexCount (); i++) {
    PVector v = s2.getVertex(i);
    s2.setTextureUV(i, map(v.x, 0, img.width, 0, 1), map(v.y, 0, img.height, 0, 1));
  }
  return s2;
}

Here is the complete working demo sketch.

Summary 
PFont font;
MyShape myShape;

static final int windowWidth  = 1280;
static final int windowHeight = 968;

void setup() {
  size(1280, 968, P3D);
  font = createFont("Helvetica", 24.0);
  myShape = new MyShape();
}

void draw() {
  if ( mousePressed ) {
    myShape.regenerate();
  }
  shape(myShape.shape, ( windowWidth - myShape.shapeWidth ) / 2.0, ( windowHeight - myShape.shapeHeight ) / 2.0);
}

class MyShape {

  PShape shape;

  int shapeWidth = 400;
  int shapeHeight = 200;

  int radius = 50;

  MyShape() {
    regenerate();
  }

  void regenerate() {

    PShape tempShape, regularRect, roundRect;      
    PGraphics textBoxPGraphics = createGraphics(shapeWidth, shapeHeight);

    // Create texture (background colour and some text) for use later

    noStroke();
    textBoxPGraphics.beginDraw();

    textBoxPGraphics.fill(255); // Text colour white
    textBoxPGraphics.textSize(24.0);
    textBoxPGraphics.textAlign(CENTER, CENTER);

    textBoxPGraphics.background(color(0, 0, 255));
    textBoxPGraphics.text("Blue!", shapeWidth / 2, shapeHeight / 2 );

    textBoxPGraphics.endDraw();

    // updatePixels() has no beneficial effect/   .
    // textBoxPGraphics.updatePixels();
    // loadPixels() has no beneficial effect/   .
    // textBoxPGraphics.loadPixels();

    // Create regularRect using the textBoxPGraphics as a texture - works fine.
    regularRect = createShape();
    regularRect.setTexture(textBoxPGraphics);
    regularRect.beginShape();
    // vertex method includes the UV mappings, the y parameter is offset to enable both shapes to be seen later without overlap 
    // vertex ( x, y, texturex, texturey) 
    regularRect.vertex( 0,          -1.5 * shapeHeight, 0,          0 );
    regularRect.vertex( shapeWidth, -1.5 * shapeHeight, shapeWidth, 0 );
    regularRect.vertex( shapeWidth, -0.5 * shapeHeight, shapeWidth, shapeHeight );
    regularRect.vertex( 0,          -0.5 * shapeHeight, 0,          shapeHeight );
    regularRect.endShape();

    // Create rounded rect using the textBoxPGraphics as a texture - background colour works,
    // *** BUT *** text does not display??

    roundRect = createShape(RECT, 0, 0, shapeWidth, shapeHeight, radius);
    
    // Attempting  to force the UV mappings into the new roundRect PShape doesn't make any beneficial difference

    //for (int i = 0; i < roundRect.getVertexCount(); i++) {
    //  // println(i, roundRect.getVertex(i).x, roundRect.getVertex(i).y);
    //  roundRect.setTextureUV(i, roundRect.getVertex(i).x, roundRect.getVertex(i).y);
    //}

    // roundRect picks up the background colour, but NOT the text.
    // roundRect.setTexture(textBoxPGraphics);
    roundRect = addTextureUV(roundRect, textBoxPGraphics);

    // Add both regular and rounded rects to the shape for display in the draw() method.
    tempShape = createShape(GROUP);
    tempShape.addChild(roundRect);
    tempShape.addChild(regularRect);

    shape = tempShape;
  }
}

/**
 * https://github.com/processing/processing/issues/2508#issuecomment-50774212
 */
PShape addTextureUV(PShape s, PImage img) {
  PShape s2 = s.getTessellation(); // github.com/processing/processing/issues/2508#issuecomment-52296723
  s2.setStroke(false);
  s2.setTexture(img);
  s2.setTextureMode(NORMAL);
  for (int i = 0; i < s2.getVertexCount (); i++) {
    PVector v = s2.getVertex(i);
    s2.setTextureUV(i, map(v.x, 0, img.width, 0, 1), map(v.y, 0, img.height, 0, 1));
  }
  return s2;
}

Which does this:

17%20AM